gridjs:服务器，如何为一个简单的json数组映射数据

Question

我是一个java脚本New蜜蜂，这就是为什么我很难映射一个简单的json数组，如果它是来自服务器的响应。我已经用静态的json测试过它，它的工作原理与预期一样：

    new gridjs.Grid({
        columns: [{
             id: 'dateTime',
             name: 'Timestamp'
          }, {
             id: 'host',
             name: 'Host'
          }, {
             id: 'ipv4',
             name: 'IPv4'
          }, {
             id: 'ipv6',
             name: 'IPv6'
          }],
          data: [
              {"dateTime": "2021-12-02 03:11:30.501","host": "master.myhost.com","ipv4": "93.215.66.14", "ipv6": "2003:cc:2fff:9e4:2e91:abff:febf:d839"}, 
              {"dateTime": "2021-12-02 03:44:29.494", "host": "test.myhost.com", "ipv4": "93.203.250.190", "ipv6": "n/a"}, 
          ]
        }).render(document.getElementById("wrapper"));

但是，如果同一个json数组是由服务器交付的，我不知道如何定义数据映射。我就是这么做的：

    new gridjs.Grid({
        columns: [{
             id: 'dateTime',
             name: 'Timestamp'
          }, {
             id: 'host',
             name: 'Host'
          }, {
             id: 'ipv4',
             name: 'IPv4'
          }, {
             id: 'ipv6',
             name: 'IPv6'
          }],
          server: {
              url: "http://localhost:8080/info/zone-log",
              then: data => data.map([data.dateTime, data.host, data.ipv4, data.ipv6]) 
          }
        }).render(document.getElementById("wrapper"));

我在JS控制台上得到了以下错误：'Grid.js: TypeError：.不是函数‘。

有人能解释一下，如何正确地进行数据映射吗？

编辑

服务器响应：

curl -i http://localhost:8080/info/zone-log
HTTP/1.1 200 OK
Date: Tue, 01 Mar 2022 08:53:39 GMT
Content-Type: application/json
Transfer-Encoding: chunked

[{"dateTime":"2021-12-02 03:11:30.501","host":"master.myhost.com","ipv4":"93.215.66.14","ipv6":"2003:cc:2fff:9e4:2e91:abff:febf:d839"},{"dateTime":"2021-12-02 03:44:29.494","host":"ursa.myhost.com","ipv4":"93.203.250.190","ipv6":"n/a"}, ...}

java-脚本控制台日志：

data 
Array(191) [ {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, … ]
[0…99]
​​0: Object { dateTime: "2021-12-02 03:11:30.501", host: "master.myhost.com", ipv4: "93.215.66.14", … }
​​1: Object { dateTime: "2021-12-02 03:44:29.494", host: "ursa.myhost.com", ipv4: "93.203.250.190", … }

[Grid.js] [ERROR]: TypeError: [...] is not a function   log.ts:12:21

Answer 1

看起来，您正在获取的数据不是数组。因此，data.map()给出了类型错误。你能不能用控制台记录一下数据，看看接下来会发生什么？

new gridjs.Grid({
    columns: [{
         id: 'dateTime',
         name: 'Timestamp'
      }, {
         id: 'host',
         name: 'Host'
      }, {
         id: 'ipv4',
         name: 'IPv4'
      }, {
         id: 'ipv6',
         name: 'IPv6'
      }],
      server: {
          url: "http://localhost:8080/info/zone-log",
          then: data => {
                  console.log("data", data);
                  return data.map([data.dateTime, data.host, data.ipv4, data.ipv6]) 
                }
      }
    }).render(document.getElementById("wrapper"));

所需的数组很可能在数据中的另一个对象中。